_SIG_BIT
return ((set->__bits[_SIG_WORD(signo)] & _SIG_BIT(signo)) ? 1 : 0);
set->__bits[_SIG_WORD(signo)] |= _SIG_BIT(signo);
set->__bits[_SIG_WORD(signo)] &= ~_SIG_BIT(signo);
return (set->__bits[_SIG_WORD(sig)] & _SIG_BIT(sig)) != 0;
ATF_REQUIRE_MSG((set->__bits[i] & ~_SIG_BIT(sig)) == 0,
set->__bits[i] & ~_SIG_BIT(sig));
0xffffffff & ~(_SIG_BIT(SIGBUS)|_SIG_BIT(SIGILL)|_SIG_BIT(SIGFPE)|
_SIG_BIT(SIGSEGV)|_SIG_BIT(SIGTRAP)|_SIG_BIT(SIGSYS)),
((set).__bits[_SIG_WORD(signo)] |= _SIG_BIT(signo))
((set).__bits[_SIG_WORD(signo)] &= ~_SIG_BIT(signo))
((set).__bits[_SIG_WORD(signo)] & _SIG_BIT(signo))